maint: update deps

deps/sol2/examples/customization/source/lua_interop.cpp

@@ -0,0 +1,13 @@
+#include <lua_interop.hpp>
+
+#include <entity.hpp>
+
+#define SOL_ALL_SAFETIES_ON 1
+#include <sol/sol.hpp>
+
+void register_lua(sol::state& lua) {
+	lua.new_usertype<entity>("entity",
+	     "position",
+	     sol::property(
+	          &entity::get_position, &entity::set_position));
+}

deps/sol2/examples/customization/source/lua_zm_interop.cpp

@@ -0,0 +1,38 @@
+#include <lua_zm_interop.hpp>
+
+#include <zm/vec3.hpp>
+
+#define SOL_ALL_SAFETIES_ON 1
+#include <sol/sol.hpp>
+
+bool sol_lua_check(sol::types<zm::vec3>, lua_State* L, int index,
+     std::function<sol::check_handler_type> handler,
+     sol::stack::record& tracking) {
+	// use sol's method for checking
+	// specifically for a table
+	return sol::stack::check<sol::lua_table>(
+	     L, index, handler, tracking);
+}
+
+zm::vec3 sol_lua_get(sol::types<zm::vec3>, lua_State* L,
+     int index, sol::stack::record& tracking) {
+	sol::lua_table vec3table
+	     = sol::stack::get<sol::lua_table>(L, index, tracking);
+	float x = vec3table["x"];
+	float y = vec3table["y"];
+	float z = vec3table["z"];
+	return zm::vec3 { x, y, z };
+}
+
+int sol_lua_push(
+     sol::types<zm::vec3>, lua_State* L, const zm::vec3& v) {
+	// create table
+	sol::state_view lua(L);
+	sol::table vec3table = sol::table::create_with(
+	     L, "x", v.x, "y", v.y, "z", v.z);
+	// use base sol method to
+	// push the table
+	int amount = sol::stack::push(L, vec3table);
+	// return # of things pushed onto stack
+	return amount;
+}

deps/sol2/examples/customization/source/main.cpp

@@ -0,0 +1,42 @@
+#include <lua_interop.hpp>
+#include <entity.hpp>
+
+#define SOL_ALL_SAFETIES_ON 1
+#include <sol/sol.hpp>
+
+#include <iostream>
+
+int main(int, char*[]) {
+	std::cout << "=== customization: vec3 as table ==="
+	          << std::endl;
+
+	sol::state lua;
+	lua.open_libraries(sol::lib::base);
+
+	std::cout << "registering entities into Lua ..."
+	          << std::endl;
+	register_lua(lua);
+	std::cout << "running script ..." << std::endl;
+
+	const auto& script = R"lua(
+local e = entity.new()
+local pos = e.position
+print("pos type", type(pos))
+print("pos", pos.x, pos.y, pos.z)
+e.position = { x = 52, y = 5.5, z = 47.5 }
+local new_pos = e.position
+print("pos", pos.x, pos.y, pos.z)
+print("new_pos", new_pos.x, new_pos.y, new_pos.z)
+)lua";
+
+	sol::optional<sol::error> result = lua.safe_script(script);
+	if (result.has_value()) {
+		std::cerr << "Something went horribly wrong: "
+		          << result.value().what() << std::endl;
+	}
+
+	std::cout << "finishing ..." << std::endl;
+
+	std::cout << std::endl;
+	return 0;
+}